For a small fish only found in the San Francisco Estuary, the delta smelt has caused a lot of controversy over the years.

San Francisco State University is preparing to close its Estuary and Ocean Science Center, citing financial challenges.

San Francisco Bay’s only marine laboratory, an important site of climate change research, will close due to lack of funding, ...

There is a frost advisory in effect from 1 a.m. to 9 a.m. Sunday from the Marin coast to the Big Sur coast and Southern Monterey Bay. A freeze warning is in effect from 1 a.m. to 9 a.m. Sunday for ...

An atmospheric river brought additional rain, strong winds, and flooding to the Bay Area Tuesday, with an increasing chance ...

San Francisco Bay is a designated “estuary of national significance” under the federal Clean Water Act. The bay and its tributary streams, situated in an urban area with more than 7 million ...

According to the National Weather Service, San Francisco will experience a mix of wet and dry conditions over the next seven ...

Longfin smelt were once one of the most abundant fishes in the San Francisco Bay estuary, which includes the Sacramento-San Joaquin River Delta. They’re a key part of the food web, acting as a prey ...

The San Francisco Regional Office of the Environmental Protection Agency announced on Mar. 12 that it will provide $43.5 million to projects in 2024 that protect and restore the San Francisco Bay ...

Ferries have come a long way in the San Francisco Bay transportation system since John Reed, an Irish immigrant, established ...